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in Vehicle tracking by anonymous
I connected it the same way I would with a ibutton and relay but there is no 12V output on the pin going to the started motor with or without the dongle in range? The FMB120 give me a 12V+ on the output when ignition is turned on but the FMB920 doesn't.

Any help will be appreciated.

1 Answer

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by anonymous
Hello.

Yes, this feature is available from the firmware version 03.25.14

https://wiki.teltonika-gps.com/view/FMB920_Features_settings#Immobilizer

You schould configure your Beacon as "configured" and it schould be on the the Beacon List

Regards
by anonymous
Hi, thank you for the reply. I have tested it this way but it doesn't work.
by anonymous
Please check in status tab, if your beacon is detected, as shown here:

https://wiki.teltonika-gps.com/view/How_to_start_with_FMB_devices_and_Beacons%3F
by anonymous
Yes the beacon is detected and the relay switches on but there isn't 12V on the pin going to the starter for the car to be started. I've wired it the same as I would with a FMB120 and ibutton for immobilizer but on the FMB920 it doesn't work.
by anonymous
Hello.

If relay is switched on, the scenario is working. Please verify connection
by anonymous
The scenario is working but the voltage is incorrect. I don't get a 12V positive trigger on the output when ignition is switched on for the scenario to work correctly.
by anonymous
If voltage is incorrect, you schould verify and change relay connection.

You may put wiring schema here if you need support.
by anonymous

This is my connection, standard connection as per Teltonika. Only difference is I don't get a positive trigger from the FMB920 output when I switch the ignition on?

by anonymous
Could you provide FMB920 firmware version and screen from Teltonika Configurator -> Immobilizer scenario settings ?
by anonymous

Pictures as requested

by anonymous
Thank you.

The configuration looks correct.

Please disable ignition and put your Beacon as far so device could not see it, go to status -> I/O Info tab and check if Ignition=0 and Digital Output 1=0, then enable ignition source and verify if Ignition=1 and Digital Output=1. After that take your Beacon closer, so that device could find it and check if new tab: Beacon Info appeared and Digital Output changed to 0.
by anonymous
Morning Janusz

I did as you requested and it does what you said in your reply. I see the problem now, the output on the FMB920 is a negative trigger so if it's wired like Teltonika's diagram it doesn't switch the relay on to start the car when the beacon is close to the unit but the other way around. If I take the beacon away the relay switch and I get 12V positive on the wire going to the starter motor. Is there a way to get the FMB920 to trigger positive on the output when ignition is switched on?
by anonymous
Hello.

DOUT in each device is an open collector output, it is connected to the ground when DOUT=1

https://wiki.teltonika-gps.com/view/FMB120_First_Start

https://wiki.teltonika-gps.com/view/FMB920_First_Start

Please note, that connection to pins 86 and 87a schould be a positive signal (+12V) and when DOUT is not active (DOUT=0) pins 30 and 87a schould be connected in relay.

https://wiki.teltonika-gps.com/view/Automotive_Relay
by anonymous
Hi Janusz

I think I found the problem. I think I have a faulty relay. I will get a new one later today and test again and let you know. Thanks so far for all your help.
by anonymous
Hi Janusz

My apologies for wasting your time with this, the problem was indeed a faulty relay. Thank you again for your patients and help.

Regards Marco